I have an '03 extended cab with the 4.2l in it and I've been looking for a chip/programmer and I'm not really seeing anything available... looked at both diablosport and superchips and I'm coming up empty... can anyone point me in the right direction?

 

try JET programmers. my bro just bought one for his truck through the local auto parts store

 

Try JET programers. my bro just bought one for his 4.2 at the local auto parts store.